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- Suppose a user has a webserver running at a machine with the name www.nadir.edu.net.pk and IP address 10.10.10.10. The authoritative dns address for this web server is with the name dns.nadir.edu.net.pk and with IP address 11.11.11.11. a. Write all the steps involved in inserting this webserver name in the DNS hierarchy. b. Write all the steps involved in retrieving the IP address of www.nadir.edu.net.pkLet's say that Host C is running a Web server that listens on port 80. Suppose that this web server is able to maintain persistent connections and responds to requests from both Host A and Host B. Is Host C sending all of the requests over the same connection, or are there many sockets in use? Do each of them have port 80 even though they are broadcast over separate sockets? It's something you need to discuss and provide some clarification on.49- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the last host address of 4th subnet? Select one: A. 194.12.1.254 B. 194.12.1.192 C. 194.12.1.253 D. 194.12.1.255
- In this programming assignment, you will implement a decentralized peer-to-peer network architec-ture (P2P), including the basic implementation of the BitTorrent protocol (BTP). General P2P architec-tures can be classified into centralized and decentralized, In P2P centralized architectures, new peers senda request to the Traker (normally done via HTTP) requesting a list containing all the IP addresses ofthe peers that are already connected to the P2P network sharing the same file. The tracker then, replieswith a response containing such list. In P2P decentralized architecture, each peer is also a Traker, and itcan share only limited resources because it only sees the partial network. On the other hand, P2P decen-tralized networks avoid single point of failure since they do not depend of centralized trackers. Examplesof P2P applications that are/were implementing centralizing architectures are Nasper, the Berkeley OpenNetwork Infrastructure (BOINC) and some versions of BitTorrent.…48- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the range of usable (assignable) addresses in 4th subnet? Select one: A. 194.12.1.192 to 194.12.1.255 B. 194.12.1.193 to 194.12.1.254 C. 194.12.1.193 to 194.12.1.253 D. 194.12.1.192 to 194.12.1.254Let's pretend Host C is running a Web server on port 80. Suppose this Web server allows both Hosts A and B to make persistent connections. Is it possible that Host C is sending several requests over the same socket? Does port 80 exist in each of these connections if they are being sent through separate sockets? You should discuss and elaborate on this.
- Let's pretend Host C is running an HTTP server on port 80. Consider that this Web server allows both Host A and Host B to establish persistent connections. Does Host C always send requests using the same socket? Does port 80 exist on both ends if they travel across separate sockets? You ought to discuss and elaborate on the matter.Consider the following non-default subnet masks: (a) 255.255.248.0, (b) 255.128.0.0 . To which IP address class do they pertain?Write down the following in CIDR notation: (a) IP: 150.160.170.180, Subnet Mask:255.255.224.0; (b) IP: 75.80.85.90, Subnet Mask: 255.252.0.0 Three stations A, B, C and D are connected to a common Ethernet hub. Their IPaddresses and subnet mask are respectively: 200.100.50.67, 255.255.255.252;200.100.50.7, 255.255.255.248; 200.100.50.138, 255.255.255.240 and 200.100.50.1,255.255.255.254. Determine which among these stations can communicate with eachother. You need to show all detailed workings.consider 3 hosts (A , B and C) where A is running 3-TCP process, B has 1-TCP process and C is running 2-UDP process all process are trying to connect to a web server to download a file . How many new socket(s) will be created at the server side? Explain why?
- Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL isnot cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that n DNS servers arevisited before your host receives the IP address from DNS; the successive visits incur an RTT of RTT1, . . ., RTTn.Further suppose that the Web page associated with the link contains exactly one object, consisting of a small amount ofHTML text. Let RTT0 denote the RTT between the local host and the server containing the object. Assuming zerotransmission time of the object, how much time elapses from when the client clicks on the link until the client receivesthe object?47- An organization currently requires 40 hosts for its sales department. Given the IP Address 194.12.1.0 /24, design an optimal address scheme usingTradition Subnetting method, which will enable the connection of the sales department’s 40 hosts in one subnet and uses the remaining subnets for other departments’ hosts in the future. What will be the first host address in 3rd subnet? Select one: A. 194.12.1.190 B. 194.121.1.192 C. 194.12.11.191 D. 94.12.1.128 E. 194.12.1.129Using https://wiki.dd-wrt.com/wiki/index.php/Linking_Subnets_with_Static_Routes as a base, modify the scenario for VLSM based subnets given the following information. Site address (CIDR Notation) = 192.168.10.0/24 Subnet Included hosts Number of hosts required Subnet ID(CIDR notation) 1 Computer Labs 1 and 2 110 ? 2 Computer Lab 3 60 ?